Gael august pfenning



(No Model.)

0. A. PPENNING.-

V BUTTON. N0.- 351,'792 Patented Nov. 2, 1886.

u. PETERS, pmm-Limn n hr, Washington a. c.

UNITED STATES PATENT OFFICE.

CARL AUGUST PFENNING,

BUTTON.

SPECIFICATION forming part of Letters Patent No. 351,792, dated November2, 1886. Application filed July 19, 1886. Serial No; 209,381. (Nomodel.)

To all whom it may concern: 1

-Be it known that I, CARL AUGUST PFEN- Nine, :1 subject of the Emperorof Germany, residing at Barmen -Rittershausen, Rhenish Prussla, Germany,have invented a new and useful lniprovement in Buttons, of which thefollowing is a specification.

Thisinventicn relates to flexible-stuff shanks for buttons; and itsobject is a shank for but tons which shall be simple in construction andof which the several parts shall be'firml y fixed together.

This improved buttonshank is shown in the accompanying drawings, inwhich Figures 1, 2, and 3 show in section the three parts of which myimproved shank is built up; Figs. 4. and 5, the shank in various stagesof manufacture; Fig. 6, the finished shank. Figs. 7 and 8 show the afterprocess by which it may be converted into a finished button.

Like reference letters show similar parts throughout the figures.

Into a cylindrical ring, 0, of metal, the upper rim of which is bentoutward, as shownin Fig. l, is introduced, in the manner shown in Fig.4, a circular piece, Z, of stuff or cloth, which serves .for theflexible-stud shank, or that part of the button sewed to the garment.The edge of this piece of cloth is allowed to project slightly over theinclined rim of the ring a, and a circular metal cap, in, Fig. 3,provided with a downwardlyprojecting. flange, is placed over the sameand said flange bent down inwardly, as shown in by which it may be Fig.6, so as to clip-the said edge of the cloth piece I between the flangeand the outwardlyprojecting rim of the ring 0, and thus hold the clothedge securely in place. The shank is now complete, andappears as shownin section in Fig. 6.

This shank will form the basis of the finished button, which can be madeas follows: The inner back piece, a, is placed as shown in Fig. 7, and asecond cap, I), forminga stretcher for the cloth for the surface of thebutton, is then placed over the front and its flange bent down over therim of the inner back piece, a. The surface cloth 8 is then stretchedover the cap band secured behind by the outer back plate, in, which,lastly, is itself secured in place by bending outwardly over it thelower rim of the inner cylindrical ring, 0, as shown in Fig. 8.

What I claim as my invention, and desire to secure byLetters Patent ofthe United States, 1s

The shank for buttons, consisting of the cylindrical ring 0, with itsupper rim bent outward, the stuff piece Z, and the flanged cap is, thewhole combined substantially as described and illustrated.

In testimony whereof I have signed this specificationin the presence oftwo subscribing witnesses.

CARL-AUGUST PFENNING. WVitnesses:

EDUARD KIROHNER, M. GAMMERSBAOH.

